Research article summary (published 29 Apr 2007):

Methodological concerns for determining power output in the jump squat.

Full Abstract

The purpose of this study was to investigate the validity of power measurement techniques during the jump squat (JS) utilizing various combinations of a force plate and linear position transducer (LPT) devices. Nine men with at least 6 months of prior resistance training experience participated in this acute investigation. One repetition maximums (1RM) in the squat were determined, followed by JS testing under 2 loading conditions (30% of 1RM [JS30] and 90% of 1RM [JS90]). Three different techniques were used simultaneously in data collection: (a) 1 linear position transducer (1-LPT); (b) 1 linear position transducer and a force plate (1-LPT + FP); and (c) 2 linear position transducers and a force place (2-LPT + FP). Vertical velocity-, force-, and power-time curves were calculated for each lift using these methodologies and were compared. Peak force and peak power were overestimated by 1-LPT in both JS30 and JS90 compared with 2-LPT + FP and 1-LPT + FP (p

Author information

Author/s: Cormie, Prue (P); Deane, Russell (R); McBride, Jeffrey M (JM);

Affiliation: School of Exercise, Biomedical and Health Sciences, Edith Cowan University, Perth, Western Australia.

Journal and publication information

Publication Type: Journal Article; Randomized Controlled Trial; Research Support, Non-U.S. Gov't

Journal: Journal of strength and conditioning research / National Strength & Conditioning Association (J Strength Cond Res), published in United States. (Language: eng)

Reference: 2007-May; vol 21 (issue 2) : pp 424-30

Dates: Created 2007/05/28; Completed 2007/07/31;

PMID: 17530961, status: MEDLINE (last retrieval date: 2/18/2009, IMS Date: )

Sourced from the National Library of Medicine. Abstract text and other information may be subject to copyright.

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MeSH headings (categories)

This article was linked to the MESH Headings shown below.

Adult Data Collection - instrumentation; methods Humans Leg - physiology Linear Models

Male Muscle Strength - physiology Muscle, Skeletal - physiology Physical Education and Training Transducers

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